00730cam a2200217 4500 607508346 TxAuBib 19970707120000.0 121112s1966||||||||||||||||||||||||eng|u 66011916 (OCoLC)687956 TxAuBib Del Rey, Lester, 1915- Tunnel through time. Philadelphia : Westminster Press, [1966] 153 p ; 21 cm. When a paleontologist using a time machine to go back to the Mesozoic era fails to return, his son and the son of the machine's inventor follow him into the past. 19970707. Science fiction. TXMIT